在Sylius中，如何根据用户角色过滤产品展示？

use Sylius\Component\Core\Model\ProductInterface;
use Sylius\Component\Core\Model\ProductFilterInterface;
use Sylius\Component\Core\Repository\ProductRepositoryInterface;
use Sylius\Component\User\Model\CustomerInterface;
use Sylius\Component\User\Model\UserInterface;
use Sylius\Component\User\Repository\CustomerRepositoryInterface;
use Sylius\Component\User\Repository\UserRepositoryInterface;

class RoleFilter implements ProductFilterInterface
{
    private $productRepository;
    private $userRepository;
    private $customerRepository;

    public function __construct(
        ProductRepositoryInterface $productRepository,
        UserRepositoryInterface $userRepository,
        CustomerRepositoryInterface $customerRepository
    ) {
        $this->productRepository = $productRepository;
        $this->userRepository = $userRepository;
        $this->customerRepository = $customerRepository;
    }

    public function filter(array $criteria): array
    {
        // 获取当前用户
        $user = $this->getCurrentUser();

        // 获取用户角色
        $roles = $user->getRoles();

        // 根据用户角色过滤产品
        $filteredProducts = [];
        foreach ($roles as $role) {
            $products = $this->productRepository->findBy(['role' => $role]);
            $filteredProducts = array_merge($filteredProducts, $products);
        }

        return $filteredProducts;
    }

    private function getCurrentUser(): UserInterface
    {
        // 获取当前用户的逻辑，可以根据具体的应用实现
        // 这里假设使用了Sylius的UserRepository和CustomerRepository
        $user = $this->userRepository->findOneBy(['username' => 'current_user']);
        $customer = $this->customerRepository->findOneBy(['user' => $user]);

        return $customer;
    }
}

services:
    app.product_filter.role:
        class: App\Filter\RoleFilter
        arguments:
            - '@sylius.repository.product'
            - '@sylius.repository.user'
            - '@sylius.repository.customer'

sylius_product:
    filters:
        role:
            enabled: true
            service: app.product_filter.role